Grill Smoker Apparatus

ABSTRACT

A grill smoker apparatus provides a container and a cover. A carrier is disposed in the container. The carrier is configured to store smoke producing material such as wood chips. The carrier may be removable from the container for filling the container, for emptying the container, for replacing the container or for cleaning the smoker apparatus. The carrier includes an outer dimension smaller than the inner dimension of the container. As such, a carrier gap is defined between the inner container wall and the outer region of the carrier. The carrier gap may form a uniform, annular gap in some embodiments. Alternatively, the carrier gap has a non-uniform radial dimension around the perimeter of the container. The carrier gap provides enhanced airflow to the smoke producing material in the carrier for improving smoker performance. A heat concentrator also focuses heat to the smoker apparatus for igniting the smoke producing material.

CROSS REFERENCE TO RELATED APPLICATIONS

This nonprovisional utility patent application is a divisional of U.S.patent application Ser. No. 14/214,920 filed Mar. 15, 2014 entitledGrill Smoker Apparatus, which claims benefit and priority to U.S.Provisional Patent Application No. 61/787,800 entitled Smoker Apparatusfiled Mar. 15, 2013, both of which is hereby incorporated by referencein their entireties.

BACKGROUND

The present disclosure relates generally to an apparatus for smokingfood and more particularly to an apparatus that provides a smokingapparatus for positioning inside a cooking enclosure such as a grill orsmoker for smoking food.

Devices for smoking food are generally known in the art. Some foodsmoking devices include self-contained enclosures in which the food tobe smoked is placed. The enclosures can be closed and sealed to containsmoke that imparts flavor to the food, usually with a lid. Inside theenclosure, there is a support structure, such as a grid or platform, onwhich the meat or other food is placed. Smoke producing material such ascharcoal or wood is also placed in the enclosure and ignited. The smokeproducing materials are often wood chips soaked in water to facilitatethe creation of the smoke, wood pellets designed to burn or smolder whena heat source is applied to the pellets, or liquids that render aflavored smoke when heated. Conventional smokers of this nature aregenerally large enclosures having a generally cylindrical shape. Mostconventional smokers of this nature also rely on burning material forheat and smoke production, as opposed to combustion of flammable gassuch as propane.

One problem associated with conventional food-smoking devices is thelarge, cumbersome hardware associated with a stand-alone smoker. Manyconsumers own a conventional gas or charcoal-fired grill. Such consumersoften do not want to purchase an additional enclosure for smoking food.Additionally, many consumers do not have the additional space for anadditional enclosure such as stand-alone smoker on their patios ordecks.

Others have attempted to overcome the problems of conventionalstand-alone smokers by providing smoke producing devices and materialsthat may be used with a conventional gas or charcoal-fired grill tosmoke food. For example, wood chips may be placed directly over a heatsource in a conventional gas or charcoal-fired grill. During use, thewood chips can be ignited and can burn slowly during cooking to producesmoke. However, this conventional method of producing smoke has manydrawbacks. It is often difficult to produce a desired amount of smoke,or to control smoke production, using this crude method.

Still others have developed containers for holding smoke producing chipsfor placing on a grilling surface such as a grid, grate or platform, ordirectly on gas burners or charcoal. These types of containers includeopen trays or covered pans that may be vented to permit smoke from theheated smoke producing material to escape. The food is placed on thecooking surface of the grill, and the smoke is contained by closing thecover on the grill, which may or may not allow for the regulation of theamount of smoke within the enclosed cooking area by adjustable vents inthe grill cover. These devices also have problems and generally do notproduce a desirable amount of smoke for smoking food.

The smoked flavor imparted to the food is dependent upon the nature andamount of smoke to which the food is exposed, as well as the duration ofexposure to the smoke during cooking. The more smoke produced by thesmoking device, the faster the smoke flavor is imparted to the food.Consequently, more smoke flavor can be imparted to the food in lesscooking time when the smoking device produces more smoke under any givencooking conditions. With more smoke, a piece of food that is cooked morerapidly at a higher temperature can be infused with as much smoke flavoras a similar piece of food cooked for a longer period of time at a lowercooking temperature. Also, with more smoke, a piece of food that iscooked to a lesser degree of doneness (e.g., rare) can have the samedegree of smoky flavor imparted to it as a similar piece of food cookedat the same temperature for a longer period of time to a greater degreeof doneness (e.g., well done).

In conventional smoker devices, the amount of smoke generated by thesmoke producing material is dependent upon several factors, includingthe composition of the smoke producing material, the amount and natureof the heat applied to the smoke producing material, either directly orindirectly, and the air flow around the heated smoke producing material.

Many existing smoking devices that can be used with conventionalbarbecue grills are placed on top of the open grill, which serves solelyas the heat source for the device but does not permit the use of thegrill's cooking surface because the device is otherwise a closed systemin which the meat is placed within the device along with the source ofthe smoke. The cooking capacity of those types of devices is, therefore,limited to something less than that of the grill. Because much of theheat generated by the grill is dissipated to the outside of the smokingdevice, these types of grill-top smokers consume more energy to producethe heat necessary to cook the meat and to cause the smoke producingmaterial to smoke, and their lesser energy efficiency makes them moreexpensive to operate.

Other smoking devices that are designed to be used with a conventionalbarbecue grill under a closed cover may allow the end-user to use thegrill's cooking surface, but do not optimize the amount of smokeproduced by the smoke producing material either because the source ofheat used to heat the smoke producing material is diffuse and lessefficient at heating the smoke producing material or because thearrangement of the smoke producing material does not optimize theproduction of smoke by the heated smoke producing material. Still otherexisting smoking devices used with conventional grills are limited withrespect to the smoke producing material that may be used. In manyexisting devices, the heat is directed to the smoke producing materialfrom only a single direction and/or the air flow about the heated smokeproducing material is limited thus limiting the smoke producingmaterials' exposure to the heat, heating the smoke producing materialunevenly or incompletely, and/or limiting the amount of smoke producedby the smoke producing material.

Other conventional smoking devices include external smokers that areattached to the outside of a conventional grill and inject smoke intothe grill enclosure. Such conventional devices typically require amodification of the grill enclosure, such as drilling holes into orconnecting tubing to the grill for allowing passage of smoke from theexternal device to the interior of the grill enclosure. This type ofinstallation is burdensome on users of conventional grills.Additionally, many conventional grill users do not like the idea ofdrilling holes in their expensive grills. Another problem associatedwith conventional external smoking devices is exposure to the weather.By placing a smoker device on the exterior of a grill, rain, wind andsnow can damage and cause corrosion in the smoker. Additionally, insectsand animals may form nests in such external smoker devices.

Another problem with conventional smoker devices that are rigidlyaffixed to a grill is that the smoker device becomes immoveable uponinstallation. For example, some conventional smoker devices require auser to permanently bolt or attach the smoker to the exterior orinterior of a grill. This is an inconvenience for the user in the eventthe user desires to use the smoker apparatus on a different grill ortransport the smoker apparatus independently of the grill to which it isattached.

What is needed, then, are improved smoking devices that operate with aconventional grill, allowing the grill to be used both as a cookingdevice and a smoker. Also needed are improved smoker devices that areconfigured to be placed and operated on the interior of a grillenclosure.

BRIEF SUMMARY

One aspect of the present disclosure provides a grill smoker apparatusfor smoking food inside the enclosure of a conventional grill. Thesmoker apparatus includes a heat resistant container having one or moreside walls, an open upper end defined by the perimeter of the one ormore side walls, and an opening in the lower end. The apparatus alsoincludes a heat resistant carrier having one or more side walls, an openupper end and a bottom, with the one or more side walls and bottomhaving perforations, and the carrier having dimensions such that thecarrier fits within the container.

In some embodiments, the grill smoker apparatus also includes a coverwith one or more cover vent holes. The cover fits against the upper endof the container in a close engagement when the carrier is positionedwithin the container.

In some embodiments, the grill smoker apparatus includes a base at thelower end of the container. The base includes a base vent shaped toallow air to pass through the base into the container. The base vent islocated on an inverted base ramp defined in the base extending towardthe interior of the container in some embodiments.

A heat concentrator is positioned in the grill enclosure below the basein some embodiments. The heat concentrator includes a lower opening andan upper opening, the lower opening being larger than the upper opening.The heat concentrator forms an inverted funnel shape and provides alocal flame or heat jet below the base vent for lighting smoke producingitems retained in the carrier.

One object of the present disclosure is to provide a grill smokerapparatus for use inside the enclosure of a grill. The grill smokerapparatus is configured to produce smoke inside the grill to smoke foodduring cooking or as a standalone smoking device using the grillenclosures.

Another object of the present disclosure is to provide a grill smokerapparatus for use on a side burner of a grill to provide smoke to theinterior of the grill enclosure through an opening in the grillenclosure.

A further object of the present disclosure is to provide a grill smokerapparatus having a removable carrier for retaining smoke producingproducts such as wood chips or pellets.

Another object of the present disclosure is to provide an air gapbetween the carrier and the container to provide improved air flow tothe smoke producing material retained in the carrier.

Yet another object of the present disclosure in some embodiments is toprovide a single-use grill smoker apparatus having a container, coverand base with smoke producing material housed in the container. One ormore air channels are defined in the container to allow air flow to thesmoke producing material. The base includes a base vent, and the coverincludes a cover vent to allow air flow through the device. The airchannels may be formed via integral longitudinal channels or groovesformed in the container.

Another object of the present disclosure is to provide a grill smokerapparatus having a container with an integral base formed together as aone-piece unit, a base vent in the base, and a cover having a cover ventdisposed on the container. A carrier is positioned in the container, andan air gap is defined between the carrier and the container.

A further object of the present disclosure is to provide a grill smokerapparatus having a container and a separate base, wherein the containerfits onto the base, the base having a base vent.

Numerous other objects, features and advantages of the present inventionwill be readily apparent to those of skill in the art, upon a reading ofthe following disclosure, when taken in conjunction with theaccompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 illustrates a perspective view of an embodiment of a grill smokerapparatus in accordance with the present disclosure.

FIG. 2 illustrates a perspective view of an alternative embodiment of agrill smoker apparatus in accordance with the present disclosure.

FIG. 3 illustrates an exploded perspective view of an embodiment of agrill smoker apparatus in accordance with the present disclosure.

FIG. 4 illustrates a partial cross-sectional view of an embodiment of agrill smoker apparatus in accordance with the present disclosure.

FIG. 5 illustrates a perspective view of an embodiment of a heatconcentrator for a grill smoker apparatus in accordance with the presentdisclosure.

FIG. 6 illustrates a lower perspective view of an embodiment of a grillsmoker apparatus in accordance with the present disclosure.

FIG. 7 illustrates a perspective view of an embodiment of a grill smokerapparatus with a hinged cover in accordance with the present disclosure.

FIG. 8 illustrates a cross-sectional view of an embodiment of a grillsmoker apparatus in accordance with the present disclosure.

FIG. 9 illustrates an embodiment of a base for a grill smoker apparatusin accordance with the present disclosure.

FIG. 10 illustrates a cross-sectional view of Section 10-10 of FIG. 9 inaccordance with the present disclosure.

FIG. 11 illustrates a perspective view of an embodiment of a grillsmoker apparatus in accordance with the present disclosure.

FIG. 12 illustrates a perspective bottom view of the embodiment of agrill smoker apparatus of FIG. 11.

FIG. 13 illustrates a partially exploded view of an embodiment of agrill smoker apparatus with a cover removed from the container.

FIG. 14 illustrates a top perspective view of an embodiment of a grillsmoker apparatus including a container with carrier viewed from abovewith the cover removed.

FIG. 15 illustrates a cross-sectional view of an embodiment of a grillsmoker apparatus.

FIG. 16 illustrates a perspective cross-sectional view of an embodimentof a grill smoker apparatus with a carrier having an ash blocker.

FIG. 17 illustrates a bottom perspective cross-sectional view of anembodiment of a smoker apparatus with a carrier having an ash blocker.

FIG. 18 illustrates a perspective view of a grill with a grill smokerapparatus positioned on a side burner outside the grill enclosure.

FIG. 19 illustrates a perspective view of an alternative embodiment of agrill smoker apparatus.

FIG. 20 illustrates a partial cross-sectional view of Section 20-20 ofFIG. 19.

DETAILED DESCRIPTION

Throughout the specification and claims, the following terms take atleast the meanings explicitly associated herein, unless the contextdictates otherwise. The meanings identified below do not necessarilylimit the terms, but merely provide illustrative examples for the terms.The meaning of “a,” “an,” and “the” may include plural references, andthe meaning of “in” may include “in” and “on.” The phrase “is anembodiment” as used herein does not necessarily refer to the sameembodiment, although it may. It is understood that in the drawings notall reference numbers are included in each drawing, for the sake ofclarity. In addition, positional terms such as “upper,” “lower,” “side,”“top,” “bottom,” “inner,” “outer,” “vertical,” “horizontal,” etc. referto the apparatus when in the orientation shown in the drawing. Theskilled artisan will recognize that objects in accordance with thepresent disclosure can assume different orientations when in use.

Included herein are multiple illustrations of various embodiments offood smoking devices in accordance the present disclosure. Brieflystated, a grill smoker apparatus in accordance with the variousembodiments of the present disclosure provides a user with a way tosmoke meat and other foods in a conventional grill enclosure such as ona gas or charcoal grill. The smoker apparatus provides an improvementover conventional devices in some embodiments in that the grill smokerapparatus is configured to be placed inside the grill enclosure duringthe smoking and/or cooking procedures.

Referring now to the drawings, an embodiment of a smoker apparatus 10 isillustrated in FIG. 1. Alternative embodiments of grill smoker devicesare shown in FIGS. 11-20. Smoker apparatus 10 includes a base 40 and acontainer 11 positioned on base 40. Base 40 is integrated on container11 as a one-piece unit in some embodiments, such as being formed from asingle piece of metal or welded together to form an integral unit. Inother embodiments, base 40 is a separate piece from container 11.Container 11 includes a hollow interior configured for containing asmoke producing material such as wood chips, pellets, wood shavings,smoke fuel, or any other suitable smoke producing material known in theart. Base 40 is generally configured to be placed directly onto a grillcooking surface such as a cooking grid or grilling platform 28, seen inFIGS. 2 and 4. In some embodiments, base 40 sits directly on grillingplatform 28 inside the grill enclosure during smoking procedures.

Referring to FIGS. 1-3, 13 and 15-17, smoker apparatus 10 in someembodiments includes a container 11, a fuel carrier 14 that fits withincontainer 11, and a vented cover 20 that fits on the upper end of thecontainer 11. Carrier 14 is generally configured to contain smokeproducing materials such as wood chips or wood pellets. Carrier 14 caninclude any suitable heat-resistant material such as metal, ceramic,porcelain, etc. in various embodiments. Container 11 includes an innerdimension, or inner diameter, such that carrier 14 may be inserted intothe interior of container 11, as seen in FIG. 4. Carrier 14 defines anouter carrier dimension, or outer diameter, smaller than the innerdiameter of container 11. In some embodiments, carrier 14 includes awire mesh basket or bowl dimensioned to fit inside container 11. Carrier14 in alternative embodiments can include a wire mesh screen or anysuitable material for housing smoke producing materials.

One aspect of the present disclosure provides enhanced airflow to thesmoke producing material housed in carrier 14. Referring further to FIG.3 and FIG. 4, in some embodiments, carrier 14 includes a plurality ofcarrier holes 16 defined in the carrier walls and carrier bottom.Carrier holes 16 allow air to enter into carrier 14 not only from belowbut also from the sides to promote burning or heating of the smokeproducing materials housed in carrier 14. Smoke producing materialsstored in carrier 14 may produce smoke in relation to the amount of airavailable for combustion of the material. By allowing more air to enterinto the carrier 14, more smoke may be produced. Thus, carrier holes 16operate to improve the capacity of smoker apparatus 10 to produce asufficient amount of smoke.

Referring further to FIGS. 4 and 14-15, in some embodiments, carrier 14includes an outer dimension smaller than the inner dimension ofcontainer 11 such that a carrier gap 12 is defined between the interiorsurface of container 11 and the outer dimension of carrier 14. Carriergap 12 operates as a plenum for allowing passage of air between carrier14 and the interior walls of container 11. By allowing air to travelupwardly into the carrier gap 12 partially or fully surrounding carrier14, enhanced air flow into carrier 14 via carrier holes 16 may beachieved. Thus, improved smoke production is possible as describedabove. Carrier gap 12 defines a carrier gap width 13, seen in FIGS. 8and 15, defined as the radial distance locally between the outerdimension of carrier 14 and the inner surface wall of container 11.Carrier gap width 13 may be uniform around the perimeter of carrier 14in some embodiments. In alternative embodiments, carrier gap width 13may vary along the perimeter of carrier 14.

Referring further to FIG. 2, in some embodiments, container 11 defines aplurality of container legs 26 protruding downwardly from the lower edgeof container 11. Each container leg 26 provides a support for container11. Each container leg 26 may rest against a base 40 or alternativelymay be configured to engage a grilling platform directly. A containervent 24 is defined between each adjacent container leg 26. Eachcontainer vent 24 allows air to enter into the carrier gap 12 betweencarrier 14 and container 11. As such, enhanced air flow into the carriergap 12 and through carrier holes 16 to the smoke producing materialhoused in carrier 14 may be achieved via container vent 24.

Referring further to FIGS. 3 and 14-15, in some embodiments, a carriervent 36 is defined at the bottom of carrier 14. Carrier vent 36 includesa hole defined in the bottom of carrier 14. Carrier vent 36 allows thepassage of air into carrier 14 from the bottom. In other embodiments,carrier vent 36 may be absent. In such embodiments where carrier vent 36is absent, the bottom of carrier 14 may include carrier holes 16.Furthermore, the bottom of carrier 14 may include an ash blocker 37rather than carrier vent 36 so as to completely or partially block thefalling of ash or remnants of the smoke producing material onto the heatsource, as seen in FIGS. 16 and 17. Additionally, in some embodiments,smoker apparatus 10 is configured to allow ignition of the smokeproducing material inside the carrier 14 by a heat source inside thegrilling enclosure. As such, heat may be supplied to the smoke producingmaterial into the carrier 14 from below the smoker apparatus 10 via thecarrier vent 36. For example, when smoker apparatus 10 is positioned ona grilling surface inside a conventional grilling enclosure, thecharcoal or gas burner directly below the smoker apparatus 10 may beused in some embodiments to ignite or heat the smoke producing materialstored in carrier 14. Carrier 14 is positioned an offset height 35 abovethe base vent in some embodiments.

In some applications, it is necessary to provide an open flame to thesmoke producing material stored in carrier 14 to ignite or heat thematerial. As such, it may be necessary to provide a flame upwardlythrough the carrier vent 36 to ignite or heat the smoke producingmaterial. Conventional grilling devices such as conventional gas grillsor charcoal grills may not provide sufficient localized heat to initiatean ignition of the smoke producing material from below. Others haveresorted to using lighter fluid and/or an external ignition device suchas a grill lighter to initiate combustion of the smoke producingmaterial inside the container.

To accommodate direct ignition of the smoke producing material withoutresorting to external ignition devices, in some embodiments the presentdisclosure provides an optional heat concentrator 30 as seen in FIGS. 1,4 and 5 to be positioned directly below the smoker apparatus 10. Heatconcentrator 30 is also configured to be installed inside the grillingenclosure and provides localized heat directly below the smokerapparatus 10 to ignite or heat the smoke producing material. Heatconcentrator 30 provides a chamber for concentrating heat that risesinto heat concentrator 30 from a lower concentrator opening 64, seen inFIG. 5 along lower concentrator end 90. Heat concentrator 30 includes anupper concentrator opening 38 along upper concentrator end 88 having asmaller cross-sectional dimension than the lower concentrator opening64. In some embodiments, heat concentrator 30 is installed directly ontoa gas burner 32, as seen in FIG. 4. Heat concentrator 30 may include oneor more concentrator supports 60 resiliently biased inwardly to providea clamping force against burner 32. In other embodiments, heatconcentrator 30 may be suspended from grilling platform 28 rather thansupported by gas burner 32. As heated gas or flames move upwardly intothe lower concentrator opening 64 and travel toward the upperconcentrator opening 38, the heat or flames become compressed andfurther increase the temperature of the heat or flames. A slightlycompressed and heated stream of air and/or flames 39 is emitted from theupper concentrator opening 38 directly into the carrier vent 36. In someembodiments, where a base 40 is disposed between container 11 and thegrilling platform, the compressed and heated stream of air and/or flames39 passes through a base vent 42 defined in base 40. In someembodiments, base vent 42 is concentrically aligned with carrier vent 36such that the concentrated stream of heat and/or flames may passdirectly into carrier 14 unencumbered. In other embodiments notillustrated, the concentrated stream of heat and/or flames may bedirected to an ash blocker 37 in the bottom of carrier 14. This streamof concentrated heat and/or flames may be used to ignite or heat thesmoke producing material housed in carrier 14. Once the smoke producingmaterial is ignited and the combustion process has begun, the flow ofgas to heat concentrator 30 via gas burner 32 may be reduced oreliminated to remove the concentrated heat and/or flames from the smokerapparatus 10.

Heat concentrator 30 in some embodiments includes a plurality ofconcentrator holes 58 defined in concentrator wall 62 as shown in FIGS.4 and 5. Each concentrator hole 58 allows air to enter the chamberdefined by concentrator wall 62. The increased airflow into heatconcentrator 30 allows for a more lean equivalence ration of fuel andair inside the heat concentrator, providing more efficient combustionand allowing higher burn temperatures for igniting the smoke producingmaterial.

FIGS. 1, 4 and 8 illustrate embodiments of a smoker apparatus having aheat concentrator 30 positioned below container 11. One embodiment ofthe heat concentrator 30 includes a chute with a plurality of sidewalls, as seen in FIG. 5. The opening 38 on the upper end of the chutehas no more than one half the area of the opening on the lower end ofthe chute 64. At the lower end of the chute, adjustable flaps 60 thatcan be adjusted laterally extend downward. In some embodiments of heatsource concentrator 30, adjustable flaps are tension adjustable. Infurther embodiments, heat concentrator 30 many include an adjustableopening 38 for controlling heat flow.

Carrier 14 generally must be retained in container 11 in someembodiments. Referring further to FIG. 6, in some embodiments, aplurality of carrier support tabs 34 a, 34 b, 34 c, 34 d may be bentinwardly toward the bottom of carrier 14 from the outer wall ofcontainer 11. Each carrier support tab 34 is integrally formed in thewall of container 11. As such, when each carrier support tab 34 is bentinwardly, a corresponding container vent 24 is created at the area wherethe carrier support tab material was positioned prior to beingdislocated. This provides an advantage for manufacturing efficiency insome applications because container vents 24 and carrier support tabs 34may be formed simultaneously. As seen in FIG. 6, in some embodiments,carrier 14 rests atop the upper surface of the carrier support tabs 34.Alternatively, a variety of different supports or braces may be used tosupport carrier 14 in addition to or instead of support tabs 34. Inalternative embodiments, carrier 14 may be suspended in container 11 viaa plurality of hooks that engage the upper perimeter of the container11. In yet another embodiment, carrier 14 sits directly on the surfaceupon which the container 11 sits, such as a grilling platform 28 or base40.

Referring further to FIG. 6, in some embodiments, a plurality of sidevents 18 a, 18 b, 18 c, 18 d, are defined in the wall of container 11.Each side vent 18 defines a hole through container 11 for providingincreased air flow to carrier gap 12. In some embodiments, as seen inFIG. 1, side vents 18 may include an adjustable slide 19 that can beused to alter the cross-sectional opening area of the side vent 18.Slide 19 may be manually positioned to a desired location to allow adesired amount of air to enter through the side vent 18.

In yet another embodiment of a smoker apparatus 10, carrier 14 issituated within the container 11 and connected to the inner walls of thecontainer 11 such that a carrier gap remains between the outer surfacesof carrier 14 and the inner surfaces of the container 11.

In various embodiments, smoker apparatus 10 may include differentversions of cover 20. Cover 20 encloses the upper end of the container11 during use. In some embodiments, cover 20 is conically shaped, asseen in FIGS. 3 and 11. Cover 20 may also include the shape of afrustrated cone as seen in FIGS. 1, 7 and 8. Cover 20 also includes acover side wall 21 extending down from the angled portion of the coverin some embodiments as seen in FIG. 11. Cover 20 may also be completelydetachable from container 11, as seen in FIG. 3 in some embodiments. Assuch, once carrier 14 is installed in container 11, cover 20 is thenpositioned on the container 11. In alternative embodiments, cover 20 ispivotally attached to container 11 at a cover hinge 15, seen in FIG. 7.Cover 20 maybe pivoted away from container 11 for accessing carrier 14and pivoted back toward container 11 for closing the top opening ofcontainer 11. A cover flange 17 may also be disposed on cover 20 in someembodiments. Cover flange 17 protrudes downwardly from a portion of thelower perimeter of cover 20 in some embodiments. Cover flange 17 mayprovide a place for a user to engage cover 20 to rotate cover 20 awayfrom container 11. Alternatively, a cover handle 66 is positioned oncover 20 as seen in FIG. 15. A user may use a cooking utensil to engagecover handle 66 and lift cover 20 from container 11. When cover 20 isclosed against container 11, it may be difficult to get a utensil intothe small gap between the upper edge of container 11 and the lower edgeof cover 20. Cover flange 17 protrudes downwardly beyond theintersection of cover 20 and container 11 when cover 20 is in the closedposition. A user may use a utensil to engage the lower edge of coverflange 17 along the side of container 11 to manually lift the cover 20away from container 11.

Referring now to FIGS. 1, 2, 8, and 11, in various embodiments, cover 20includes one or more cover vents 22 defined in the upper portion ofcover 20. Each cover vent 22 allows smoke to be released from smokerapparatus 10 and to allow air flow through the device. In someembodiments, cover vent 22 includes an adjustable opening size using oneor more sliding cover vent tabs. Each cover vent tab may be rotatedabout a pivot point on cover 20 to selectively open or close cover vent22. When cover vent 22 is fully open, greater air flow may be achievedthrough smoker apparatus 10, and more smoke may be produced. When covervent 22 is in a more closed position, air flow may be restricted andless smoke may be produced. By providing an adjustable cover vent 22 invarious embodiments, a user may set smoker apparatus 10 to produce justthe right amount of smoke for a desired application.

Referring to the optional embodiment in FIG. 1, cover vent 22 isillustrated. In this embodiment, the cover vent opening size isadjustable. A vent cover plate 25 with one or more vent openings ismovably attached to the surface of the cover 20 such that the movementof the vent cover plate aligns the vent cover plate opening with all orpart of a cover vent 22. In another embodiment of a vent cover plate, asseen in FIG. 11, the vent cover plate is a solid plate connected movablyto the cover 20 surface such that the movement of the vent cover platecovers all, part or none of the cover vent 22.

Also seen in FIG. 1, in some embodiments, a handle 66 is disposed onsmoker apparatus 10. Handle 66 may be attached to cover 20 in someembodiments. As such, a user may manually engage handle 66 to lift cover20 from the container 11. Alternatively, handle 66 may be attached tocontainer 11 such that the smoker apparatus 10 as a whole may be movedusing handle 66. In other embodiments, container 11 may include handle66 and cover 20 may include a separate handle 66.

Referring further to FIG. 3, in some embodiments, an integrated coverhandle 27 protrudes upwardly from cover 20. Integrated cover handle 27includes a portion of cover 20 having a substantially uniform diametersuch that a user may use a pair of tongs or pliers to grasp integratedcover handle 27 and lift cover 20 from container 11. Integrated coverhandle 27 may also include a cover vent 22 defined therein, as seen inFIG. 2, in some embodiments.

Referring further to FIGS. 2 and 4, in some embodiments, container 11includes a base 40. Base 40 provides an ash collection function in someembodiments. Base 40 forms a bottom to container 11 in some embodiments,as seen in FIGS. 11-17. As the smoke producing material is burned up,ash is produced inside carrier 14. The ash has a tendency to falldownwardly due to gravity. When container 11 is sitting directly atopthe grilling platform, ash from carrier 14 may fall directly below thesmoker apparatus 10. That ash may circulate inside the grillingenclosure due to natural convection currents and inadvertently land onthe food being cooked. This is generally undesirable. To overcome thisproblem in some embodiments, base 40 includes a plate or dish having alarger outer dimension than container 11. Base 40 also includes anangled base ramp 68, seen in FIGS. 2, 4, 8 and 9. Ash falling fromcarrier 14 collects on base ramp 68 and slides down base ramp to acollection area 70 on base 40. Collection area 70 may include an outerupturned boundary wall in some embodiments, as seen in FIGS. 2 and 4.Ash falling from carrier 14 thus may be collected on base 40, and whenthe smoking procedure is complete, the ash may be dumped from the base40 into an appropriate trash area.

In some embodiments, as seen in FIG. 2 and FIG. 4, ash collected on thebase 40 in collection area 70 may be exposed to the air currents insidethe grilling enclosure. This may be a problem in some applications ifthe ash becomes entrained in the internal air currents and ends upmaking contact with the food items being smoked inside the enclosure. Toovercome this problem, in some applications, base 40 is modified toinclude an outer base wall 46, seen in FIGS. 1, 7, 8 and 9. Outer basewall 46 provides a cover for ash deposited in collection area 70. Forexample, as seen in FIG. 7 and FIG. 9, outer base wall 46 rises upwardlyat an angle and forms an outer base wall opening 72, seen in FIG. 9 andFIG. 10. Container 11 is generally dimensioned to fit inside outer basewall opening 72 in some embodiments. As such, outer base wall opening 72includes an outer base wall opening diameter 74, and container 11includes an outer diameter. In some embodiments, outer base wall openingdiameter 74 is substantially equal to or slightly larger than thecontainer diameter at the lower portion of container 11 inserted intothe base 40. This results in a tight fit between the inner upper edge ofouter base wall 46 and the outer perimeter of container 11. This tightfit is desirable in many applications to prevent ash material fromescaping from collection area 70. In these embodiments, collection area70 is defined between outer base wall 46 and inner base wall 48, as seenin FIG. 10. It is noted that in some embodiments inner base wall 48defines an inner base wall height 52, and outer base wall 46 defines anouter base wall height 54. In some embodiments, inner base wall height52 is greater than outer base wall height 54. As such, the centersection of base 40 adjacent base vent 42 protrudes slightly upwardlyfrom the outer base wall opening 72. Additionally, in some embodiments,base vent 42 defines a base vent diameter 44 smaller than outer basewall opening diameter 74.

Referring further to FIGS. 9, 10 and 12, in some embodiments, inner basewall 48 forming base ramp 68 includes a lower surface having the shapeof an inverted funnel. The lower side of base ramp 68 formed by innerbase wall 48 being angled upwardly at a lower base wall angle 50provides an additional concentration of heat rising upwardly from thebottom of base 40. As heat rises upwardly toward the underside of baseramp 68, the heat is concentrated toward base vent 42. This provides anadditional advantage over conventional smokers for increasing the heatapplied to the smoke producing material directly above base vent 42 insome embodiments.

As seen in FIG. 13, in some embodiments, carrier 14 includes a heightabove base 40 greater than the height of container 11 above 40, formingan offset height H of carrier 14 greater than container 11. As such,carrier 14 includes a portion that extends above the upper edge 11 a ofcontainer 11. When cover 20 is placed on container 11, an engagement isformed between the lower edge 20 a of cover side wall 21 and the upperedge 11 a of container 11. It is advantageous in some applications tohave the intersection of cover and container at a position lower on thedevice to distance the intersection from the cover vent 22 to reduce thelikelihood of smoke escaping from the intersection instead of the covervent 22.

Different material compositions may be used to form the variousstructural features of smoker apparatus 10 or heat concentrator 30. Insome embodiments, ASTM A424 Type 1 steel is used as the heat resistantmaterial for some or all of the various components of the smokerapparatus 10 and/or heat concentrator 30. Other possible heat resistantmaterials could include stainless steel or porcelain enamel coatedmetals.

Referring further to FIG. 18, in some embodiments, smoker apparatus 10is configured to be used on side burner 110 outside of a grill enclosure102. Smoker apparatus 10 includes a vent extension 100 coupled to covervent 20. The vent extension 100 is shaped to extend from the smokerapparatus 10 to an enclosure opening 104 in the grill enclosure 102. Thevent extension 100 can include a hollow tube or conduit in someembodiments. Vent extension 100 can include a flexible or rigid pipe insome embodiments.

Referring further to FIGS. 19-20, an integrated grill smoker apparatus200 in some embodiments includes a container body 204 with a cover 205and a base 207. The container, cover and base can be formed in adisposable arrangement such as a three-piece can arrangement in someembodiments. A removable cap 202 is located on cover 205 over the covervent. The removable cap 202 may be unscrewed and removed by a user toopen the cover vent. The removable cap 202 may include a plastic capthreaded onto the cover in some embodiments. The container 204 ispre-filled with smoke producing materials such as wood chips or pelletsin some applications. A seal or other removable cap is located on base207 covering the base vent. A user may remove the removable cap coveringthe base vent prior to use to allow air to enter the base vent.Additionally, one or more grooves or ridges 206 a, 206 b, 206 c may beformed in the container body. Each groove or ridge provides a contouredprofile to the container body in a corrugated arrangement. Each groove206 defines a local air channel 212 a, 212 b, 212 c, etc. on theinterior of the container 204, as seen in FIG. 20. Each air channelprovides a passage for air to travel upwardly through the container andengage the smoke producing material 214 housed in the container.

Furthermore, sizes of various structural parts and materials used tomake the above mentioned components are illustrative and exemplary only,and persons of ordinary skill in the art would recognize that thesesizes and materials can be changed as necessary to produce differentresults or different desired characteristics or capabilities. It shouldbe understood that the smoker apparatus 10 and/or heat concentrator 30are not limited to the examples disclosed in the specification.

Thus, although there have been described particular embodiments of a newand useful grill smoker apparatus and heat concentrator it is notintended that such references be construed as limitations upon the scopeof the present invention except as set forth in the following Claims.

What is claimed is:
 1. A grill smoker apparatus (10), comprising: a container (11); a cover (20) disposed on the container (11); a carrier (14) disposed in the container (11), the carrier (14) including a plurality of carrier holes (16) for allowing air passage into the carrier (14); a carrier gap (12) defined between the container (11) and the carrier (14), the carrier gap (12) configured to allow air to flow between the container (11) and the carrier (14); a base (40) positioned at a lower end of the container (11), the base (40) including a base ramp (68) inclined inwardly toward the carrier (14), and a base vent (42) defined on the base ramp (68), the base vent (42) open to an interior of the container (11), the carrier (14) positioned above the base vent (42); a heat concentrator (30) positioned below the base (40) and the base vent (42), the heat concentrator (30) forming an inverted funnel shape, the heat concentrator (30) having a lower concentrator opening (64) and an upper concentrator opening (38), the lower concentrator opening (64) being larger than the upper concentrator opening (38), the upper concentrator opening (38) aligned below the base vent (42); a plurality of concentrator holes (58) defined in a concentrator wall (62) of the heat concentrator (30); and one or more concentrator supports (60) included on the heat concentrator (30), the one or more concentrator supports (60) resiliently biased inwardly.
 2. The apparatus (10) of claim 1, further comprising the carrier (14) having an outer perimeter, and the carrier gap (12) forming a continuous annular gap around the outer perimeter of the carrier (14).
 3. The apparatus (10) of claim 1, wherein the carrier (14) is removable from the container (11).
 4. The apparatus (10) of claim 1, wherein the carrier (14) comprises a wire mesh basket.
 5. The apparatus (10) of claim 1, wherein the cover (20) is removable from the container (11).
 6. The apparatus (10) of claim 1, wherein the cover (20) is pivotally attached to the container (11) at a hinge (15).
 7. The apparatus (10) of claim 1, wherein the base ramp (68) has the shape of an inverted funnel.
 8. The apparatus (10) of claim 1, further comprising a carrier vent (36) defined in the carrier opposite the base vent (42).
 9. The apparatus (10) of claim 1, further comprising an ash blocker (37) on the carrier (14) opposite the base vent (42).
 10. The apparatus (10) of claim 1, further comprising a cover vent (22) defined in the cover (20), the cover vent (22) including a moveable vent cover plate (25).
 11. The apparatus (10) of claim 1, the heat concentrator (30) further comprising: one or more side walls on the concentrator wall (62) of a heat resistant material and having an upper concentrator end (88) and a lower concentrator end (90); the upper concentrator opening (38) defined at the upper end (88); the lower concentrator opening (64) defined at the lower end (90), the lower concentrator opening (64) having an opening area at least two times the opening area of the upper concentrator opening (38); and the one or more concentrator supports (60) extending from the lower end (90) of the one or more side walls and configured to directly engage a heat source and support the heat concentrator (30) orienting the upper end (88) toward the container (11).
 12. The apparatus (10) of claim 1, further comprising a carrier vent (36) defined at the bottom of the carrier (14), wherein the base vent (42) is concentrically aligned with the carrier vent (36) such that compressed and heated air passes directly into the carrier (14) from the heat concentrator (30). 